======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '52'
                                          'artist'  "Old Man's Child"
                                     'text_people'  ''
                                         'release'  'In Defiance of Existence'
                                           'title'  'In Quest of Enigmatic Dreams'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['melodic black metal', 'symphonic black metal', 'black metal', 'metal', "
 "'norwegian']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '123.4'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'PRIV:PeakValue:[~\x00\x00'                         PRIV(owner='PeakValue', data=b'[~\x00\x00')
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'TALB' (Album/Movie/Show title)                     'In Defiance of Existence'
'TBPM' (BPM (beats per minute))                     '123.4'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'In Quest of Enigmatic Dreams'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               "Old Man's Child"
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['melodic black metal',
 'symphonic black metal',
 'black metal',
 'metal',
 'norwegian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.27 dB'
'TXXX:replaygain_track_peak'                        '0.493595'

========================== row from database ==========================
                                              'id'  1531369
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Old Man_s Child/In Defiance Of Existence [2003]/07 In_Quest_of_Enigmatic_Dreams.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  52
                                           'genre'  eid-metal-black
                                        'filesize'  1260822
                                           'mtime'  1620301754
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Man_s Of [2003] 07 In_Quest_of_Enigmatic_Dreams eid metal black
                                      'tag_artist'  Old Man's Child
                                     'tag_release'  In Defiance of Existence
                                       'tag_title'  In Quest of Enigmatic Dreams
                                             'bpm'  123.4
                                    'search_title'  'dreams':5 'enigmatic':4 'in':1 'of':3 'quest':2
                                   'search_artist'  'child':5 'man':2 'mans':4 'old':1 's':3
                                  'search_release'  'defiance':2 'existence':4 'in':1 'of':3
                                     'search_rest'  '00dwimp':1 '00metal':2 '2003':6,7 'black':15 'dreams':12 'eid':13 'enigmatic':11 'in':8 'man':3 'metal':14 'of':5,10 'quest':9 's':4
                                    'search_combo'  '00dwimp':15 '00metal':16 '2003':20,21 'black':29 'child':10B 'defiance':12C 'dreams':5A,26 'eid':27 'enigmatic':4A,25 'existence':14C 'in':1A,11C,22 'man':7B,17 'mans':9B 'metal':28 'of':3A,13C,19,24 'old':6B 'quest':2A,23 's':8B,18
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['melodic black metal', 'symphonic black metal', 'black metal', 'metal', 'norwegian']
                                        'tag_date'  2003
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301753.928266  (2021-05-06 13:49:13)
                             'size'  1260822